Pressure mechanism for heelattaching machines



July 6, 1-937. J. GOULDBOURN ET AL 2,085,351

PRESSURE MCEIAKISM FOR HEEL ATTACHING MACHINES Filed Dec. 17, 1935 3Sheets-Sheet l July 6, 1937. I

J. GOULD-BOURN ET AL 1 PRESSURE MECHANISM FOR HEEL AT'IACHING MACHI NES3 Sheets-Sheet 2 Filed Dec. 17, 1935 y 1937. J. GOULDBCSURN ET AL I2,085,851

PRESSURE MECHANISM FOR HEEL ATTACHING MACHINES Filed Dec. 17, 1935 3Sheets-Sheet 3 Patented July 6, 1937 UNITED STATES PATENT OFFICEPRESSURE MECHANISM FOR HEEL- ATTACHING MACHINES poration of New JerseyApplication December 17, 1935, Serial No. 54,858 In Great BritainJanuary 1, 1935 22 Claims.

This invention relates to machines for attaching heels to shoes, andespecially to means for applying pressure to the work to resist the operating forces.

Machines for attaching heels to shoes are generally known either asinside heel-attaching machines or outside heel-attaching machines. Inthe former, heel-attaching fastenings are inserted from the inside ofthe shoe through the heel- 10 seat into the heel, while in the latter,such fastenings are inserted from the outside through the heel and intothe heel-seat.

In both kinds of machines, the shoe and heel are usually pressed firmlytogether before the 15 heel-attaching fastenings are inserted and are soheld during the insertion, and the present invention is chieflyconcerned with providing in a heelattaching machine simple and highlyeflicient mechanism, preferably including some such fluid n as oil, forobtaining the initial and continuing pressure.

The work-positioning and retaining mechanisms disclosed herein are madethe subject of an application for Letters Patent of the United States inthe name of Joseph Gouldbourn, filed December 17, 1935, Serial No.54,859.

The various objects and the several features of the present invention,in connection with either of the kinds of heel-attaching machineshereinbefore referred to, will become apparent from a consideration ofthe following description, given by way of example, of a particularembodiment of the invention, which will be hereinafter illustrativelydescribed, with reference to the accompanying drawings, in connectionwith a heelattaching machine of the general character of that disclosedin Letters Patent of the United States No. 1,195,134, Gouldbourn, August15, 1916.

In the drawings,

40 Fig. 1 is a left-hand side elevation of the upper part of saidpatented heel-attaching machine, embodying this invention;

Fig. 2 is a side elevation, partly in section and to a larger scale, ofthe upper part of the machine 45 shown in Fig. 1;

Fig. 3 is a front elevation, partly in section, of part of the pressuremechanism shown in Figs. 1 and 2;

Fig. 4 is a plan view of mechanism for posi- 50 tioning a shoe in themachine;

Fig. 5 is a section on the line VV of Fig. 4, and

I Fig. 6 is a section on the line VIVI in Fig. 2.

The means for pressing a shoe and heel to- 55 gether and holding them sopressed while heelattaching fastenings are inserted may include avertical plunger I (Fig. 2), which, at its lower end, supportswork-pressing devices. The plunger is arranged to reciprocate in themachine-frame 3. It has at its rear side a vertical rack 5 engaged by agear-segment 1 on the forward end' of an arm 9 secured on a horizontalshaft ll extending laterally of the machine and rotatable in the frame3. v The segment-arm 9 may be actuatedto move the plunger downwardly by10 mechanism including a treadle l2 and other parts similar to those ofthe previously-mentioned patent,-by which preliminary pressure isapplied to the work, and the power-operation of the machine isinitiated. Formed in the plunger l is a cylindrical fluid-containingchamber l3, which is closed at its lower end and at its upper end isenlarged somewhat and is open. A cylindrical tube I 5 is secured on themachine-frame by screws H, H and extends downwardly into the chamber l3,the plunger l fitting and sliding about its exterior. Threaded into thetube I5 at its upper end is a spring-adjusting collar l9, having abovethe upper end of the tube a flange 2| in which are shown radial holes toreceive a bar by which the collar is may be turned and adjustedlongitudinally of the tube. The lower end of the tube has secured in ita valve member 23 having a vertical central bore 25 and between this andthe outer Wall of the member a number of smaller vertical bores. One ofthese smaller bores is shown at 21, opening through the top of the valvemember 23 and into an enlarged portion 29 of the central bore 25 nearbut inside the lower end of the valve member. A valve-plate 3|. isseated on the top of the member 23 and there normally closes the bores21. This valve-plate is pressed down against the upper end of the valvemember 23 by a coil-spring 33 confined in the tube l5 between thevalve-plate and the collar l9. By adjusting the collar, the pressure ofthe spring against the valve-plate and the resistance to movement ofsaid plate may be varied.

Slidingly mounted in a bore in the spring-adjusting collar [9 and in thebore 25 in the valve member 23 is a tubular piston 35, which passesthrough the spring 33. This piston at its upper end is secured in acarrier 31 extending downwardly at the front of and partly around theupper portion of the machine-frame. At each side, the piston-carrier hasformed in it horizontal grooves 39, which receive the forward roundedends of arms M of a forked lever 43 by which the piston is moved up anddown. The lever 53; is fulcrumed on a horizontal shaft 45 extend- 55 inglaterally of the machine and secured in the machine-frame. The rear endof the lever has pivotally connected to it the upper extremity of adownwardly-extending rod 4?, which at its lower end is connected to acrank-operated toggle 49, as in the Gouldbourn patent. When, during thepower-operation of the machine, the toggle is straightened, the piston35 is moved down positively. This piston has extending axially throughit a valve-rod 5|, the lower end of which has secured on it a valve 53arranged to close the lower opening of the bore 25 in the valve member23, so that fluid in the bottom of the chamber !3 below the valve memberis locked in said chamber. The enlarged upper end 55 of the valve-rod 5!has a vertical slot which receives the rounded forward end 51 of avalve-operating lever 59 fulcrumed on a horizontal shaft 6i extendingacross the machine-frame. The valve-operating lever 59, at its rearextremity, is connected by a rod 53 to a lever 65 actuated in theoperation of the machine, similarly to that in the previously-mentionedpatent which effects the clamping engagement of the friction-plates.

The tube i5 has formed in it above the valveplate 3|, a number ofopenings 51, which allow fluid to pass from the enlarged portion of thechamber i3 in the plunger i into the inside of the tube. The top of thevalve member 23 has a number of recesses. one of which is shown at 59,formed in it between the bores 21 in the wall of the member. Throughthese recesses, fluid passing through a central opening in thevalve-plate 3| surrounding the piston 35 can flow through the bore 25 inthe valve member 23 when the piston is raised. If the valve 53 at thebottom of the member is open, the fluid can pass into the bottom of thechamber I3 below the valve member.

When the machine is at rest, the plunger l is held in its raisedposition by a spring acting upon the treadle mechanism. The piston 35 israised so that its lower end is above the bottom of the recesses 59 inthe valve member 23, and the valve 53 at the bottom of the valve mem beris open. Consequently, the fluid can flow freely from the enlarged upperportion of the chamber i3 through the openings 61 in the tube i5,through the central opening in the valveplate 3| and the recesses 58,and then down the bore 25 in said valve member and through the openvalve 53 into the bottom of the chamber 13. After a shoe and heel to beattached thereto have been positioned between a. work-pressing post i85carried at the bottom of the plunger I and a die-block I85 of thenailing mechanism of the machine, the plunger is lowered by the arm 9and the treadle mechanism to apply preliminary pressure to the work.Duringthe lowering of the plunger, the fluid in the chamberl3 flows fromthe upper enlarged portion into the lower portion of said chamber.Continued depression of the treadle puts the machine into op erationunder power, as described in the Gouldbourn patent, and during thepowerwycle,

the piston 35 is positively lowered by the toggle-- lever 49. In itsdescent, the piston first closes the recesses 59 in the upper end of thevalve member 23 and then forces, through the pressure thus applied tothe fluid in the chamber I3, the plunger I downwardly to urge the con--tact members. on the post I85 against the work. When this travel ef theplunger is stopped by the work, downward movement of the piston 35forces the fluid in the bottom of the chamber [3 up through the holes 21in the wall of the valve member 23 and past the valve-plate 3! on saidmember against the pressure of the spring 33. The amount of this finalpressure applied to the work by the pressure devices is controlled bythe spring 33, which may be adjusted by the collar i9 to vary itsresistance and thus the force applied by the piston through the cylinderand its contained fluid. according to what is required by the characterof the work. After the downward stroke of the piston has been completed,the valve 53 is raised, by its connections to the lever 65, toclose theopening at the bottom of the valve member 23. The fluid in the lowerpart of the chamber i3 is therefore locked thereinand upward movement ofthe plunger i and the post I85 is prevented during the insertion ofheel-attaching fastenings. After this, the valve 53 is opened and thepiston 35 is raised by their operating mechanisms. If the treadle hasbeen released, the plunger is raised by a spring 72 associated with thetreadle mechanism, the elements being thereby restored to I theirinitial positions.

The means for positioning a shoe in relation to a heel which is to beattached thereto may include a band-clamp H (Fig. 4), which is arrangedto engage the back and sides of the heel end of the upper of the shoeand to enter the crease formed by the upper and outsoie. This band-clampis preferably in the form of a stripof thin sheet-metal, bent to furnishopposite arms having substantially the shape of the heelend of a shoe.The forward ends of the bandclamp have laterally extending ears i3, "i3pivotally connected to the forward ends of arms 15, T! of a pair oflevers which are fulcrumed at the rear on a vertical stud 19 secured ina horizontal slide 81 which is adjustable horizontally forwardly andrearwardly of the'machine. An ear 83 extends rearwardly from thebandclamp and is connected by a vertical pivot 85 to theband-clamp-slide 8!. The band-clamplevers l5 and Ti have, respectively,extending rearwardly and to the right from them, arms 81 and 89,carrying on vertical pivots cam-rolls 9!, 93, respectively. Thesecam-rolls are respectively urged towards two cams 35 and 91 by a spring99 connecting the arms 87, 89 of the band-clamp-levers. The cams aresecured on a vertical cam-shaft illl rotatable in the slide 8! betweenthe cam-rolls. When the cam-shaft is rotated in one direction, theforward ends of the band-clamp H are moved towards each other by thecams to grip and temporarily retain the heel-end of a shoe. When thecam-shaft is rotated in the opposite direction, the spring 99 connectingthe arms 81, 89 of the band-clamplevers opens the clamp. From thecam-shaft ifll extends rearwardly an arm I93 having rotatable in it avertical pin I05. Through the pin is threaded a horizontal rod l0!having secured on its end toward the right of the ma- I09 by which therod other is obtained. The band-clamp-slide 8| is adjustably mounted ona dovetailed guide II9 (Figs. 2 and 5) extending forwardly from thevertical slide H1. The guide II9 has formed on its upper surfacerack-teeth IZI, which are engaged by the teeth of a pinion I23 on ahorizontal shaft I25 rotatable in the slide 8|. The right-hand end ofthe shaft I25 has secured on it a hand-lever I2? by which the shaft maybe rotated to adjust the slide BI and band-clamp forwardly or rearwardlyof the machine. The pointed end of a screw I29 threaded through theslide engages a groove in the shaft I25 to prevent it from movingendwise. From the side of the band-clamp-slide SI opposite the lever I21projects a bolt I3I on which is slidingly mounted a block I33, shaped asshown in Fig. 5, to engage the guide II9. This block is clamped againstthe guide H9, to hold the band-clamp TI in adjusted position, by a nutor sleeve I35 threaded on the bolt Isl. The sleeve may be rotated by ahand-lever I37, so clamped upon it as to be adjustable into a convenientposition for operation.

A second arm I39 of the bell-crank-lever H4 is connected by universalcouplings and a rearwardly-extending rod Il to an upwardly-extending armI43 of a bell-crank-lever I55 fulcrumed on the machine-frame. The otherarm IA? of the bell-crank-lever I45 is pivoted to the upper end of oneof a pair of toggle-links I59, I 5!. The lower end of the toggle-linkI5I is connected to an arm I53 actuated through a link I52 from thetreadle I2, as in the previouslymentioned patent. The toggle I49, I5! isnormally maintained partly broken by the engagement of stop-lugs I55,I55 on the toggle-links close to their common connection, which lugs areheld in normal engagement by a spring I51 connected to the toggle and tothe frame of the machine. Normally, the opposite sides of the band-clampII are separated by the spring 99. When the treadle is depressed to movethe workpressing members downwardly, the first part of the movementcauses, through the chain of connections between the arm I 53 and thecamshaft IUI, the band-clamp-cams 95, 9'I to be rotated to close thesides of the band-clamp II against a shoe placed between them.Thereafter, during continued depression of the treadle, the toggle-linksM9, I5I break further, and, while the contact devices on the post I35are actuated by the treadle to press the work, the spring I5! connectedto the toggle yields and holds the cams 95, 91 in the positions theyreached when moving the band-clamp into engagement with the shoe. Whenthe treadle is released and as it is fully raised by its spring, thespring I51 returns the toggle-links I59, I5I to their partly brokencondition, and thereafter the cams are rotated, and the clamp TI isagain opened by the spring 99.

If the machine is being used for attaching a heel or heel-base to a shoeby fastenings inserted from the outside and for spanking a top-liftthereon in successive operating cycles without removing the shoe fromthe machine, it is desirable, to avoid the opening of the band-clamp IIbetween the successive cycles and the releasing thereby of the shoe, toprevent the treadle from being raised to its highest position. For thispurpose, a rod I6! (Fig. 1) joining the treadle-actuated lever I53 tothe work-pressing devices, as in the Gouldbourn patent, has secured onit a block I63. A star-wheel I65 having six radial arms is rotatablymounted on a horizontal stud, projecting from the machine-frame belowthe block I53 and between the rod I6I and the frame of the machine.During each cycle of the machine, the star-wheel is rotated to bringeither the end of one of the arms or a gap between the arms beneath theblock I63. When one of the arms is beneath the block, and the rod I6I islowered as the treadle is raised by its spring,

said block engages the arm, and the band-clampis stopped before itreaches its fully raised position and is opened. If a gap between thearms of the star-wheel I65 is below the block I63, the band-clamp willbe fully raised and opened when the treadle is released. The star-wheelhas secured on it a ratchet-Wheel I61, which is engaged and rotated by apawl I59 carried by a ratchet-lever I'II fulcrumed on themachineframeand urged towards the ratchet-wheel by a spring I12. Theratchet-lever is connected by a link I13 to the lever 55, hereinbeforereferred to as operating the valve 53 in the work-pressing mechanism, sothat during each cycle of the machine, the ratchet-wheel is rotated adistance to present to the block I53 either one of the arms on thestar-wheel I65 or a gap between the arms. The pawl I59 may, by means ofa pin I15 inserted in a hole I'I'I in the lever and engaging said pawl,be held out of engagement with the ratchet-wheel if the machine is usedfor attaching heels without top-lift-spanking. This allows a gap betweenthe star-wheel-arms to be constantly alined with the block, so that theband clamp Will be fully raised and opened each time the machine isstopped.

The work-pressing devices carried by the plunger I include, as appliedto a machine of the outside heel-attaching kind, a member for engagingthe crown or top of the cone of a last in the shoe and side members forengaging the upper of the shoe at each side of the heel-end above theband-clamp and between the top and bottom of the last. The side membersassist in pressing the shoe against the heel and the heel against thetop-lift, if a top-lift is being spanked on to the heel, and preventlateral tipping of the last and shoe when pressure is applied to thework. This tipping is especially liable to occur if the top of the lastis worn or crushed.

The member which engages the crown of the last is a plate I9I (Figs. 2and 3), which may or may not have a last-pin extending downwardly fromit, depending upon the character of the shoe being operated upon. Theplate is mounted on the underside of a block I83 for limited movementlaterally of the shoe. The block is carried by the lower end of the postI85 and is arranged to tip about an axis lying in the underside of theplate I8I and close to the last-pin, if such is provided, so that theplate I8I and block I83 can tip lengthwise of the shoe. The block hasformed on it an arcuate gear-segment I81,

and the post has rotatably mounted in it a shaft M9 on which is a spiralgear I9I meshing with the segment. The shaft may be rotated by a knurledhead I93 on its forward end to adjust the angle of the plate I8I, andthe shaft'may be locked in adjusted position by a plunger and notches inthe shaft (not shown). The post I is pivotally mounted on a horizontalshaft I95 extending laterally of the machine and secured in a slide I9?mounted for fore-and-aft movement in a guideway formed in the undersideof a plate I99 on the lower end of a carrier-sleeve 25E surrounding thelower end of the plunger I and arranged to move to a limited extentlongi- 75 tudinally thereof. At the inner side of the post I is arearwardly-extending arm 293 which at its end curves upwardly andforwardly and has formed in it a slot 295 which, when the post is inoperating position, first lies horizontally and then curves upwardly atits rear, generally concentric to the shaft I95. A roll 291 is rotatableon the plate I99 in the slot 295. When the post I85 and slide I91 arepulled forward by the operator, the slot travels along the roll 291until the curved part reaches said roll, when forward movement of theslide ceases and the post may be tipped on its pivot I forward and up,until the upper end of the curved part of the'slot engages the roll. Thepost is then in a convenient position for the withdrawal of the work andthe applying of fresh work. When in its forward and raised position, thepost is locked to the slide by a pin 269 in said post, which engages aspringplunger 2II in the slide.

' Connected to the slide I91 is a link 2 I3, which at its lower end isjoined to the vertical slide II1 which carries the band-clamp-slide 8|,so that the band-clamp 1I moves up and down with the slide I91. The link2I3 is threaded through pins 2I5, 2I1 rotatable respectively in theslide H1 and in a lever 2I9 fulcrumed on the slide I91 and having aforked forward end engaged by a pin 22I in the post I85. The link 2I3has right and left screw-threads on its opposite ends, so that byrotating the link the vertical slide I I1, and with it the band-clamp,may be adjusted up or down relatively to the post to cause saidbandclamp to be properly positioned to receive the heel-end of a shoe.When the slide I91 is moved forward and the post I85 is swung up, thepin 22I turns the lever 2I9 in ajclockwise direction, as viewed in Fig.2. The link is therefore actuated to draw up the band-clamp further thanit has already been raised as the slide I91 and bandclamp were elevatedby the plunger I upon release of the treadle. This provides additionalclearance for the presentation of a heel and toplift to the machine.

The members which engage the upper at opposite sides of the heel-end ofthe shoe consist of two leather-faced blocks 223, 223 (Fig. 3), whichare mounted for limited rocking movement lengthwise and heightwise ofthe shoe on the lower ends of upwardly and outwardly curved bars 225,225, adjustably held in the lower ends of upwardly-extendingclamp-levers 221, 221 situated on opposite sides of the post I85. Theclamplevers are fulcrumed on horizontal pivots 229, 229 secured in theouter extremities of a pair of lever-carrying arms 23I, 23!. These arms23I are fixed at their opposite ends to horizontal studs 233, 233rotatable in lugs extending laterally from the sleeve 29I of thework-pressing mechanism. The pivots 233, 233 of the lever-carrying armsare on opposite sides of the vertical axis of the plunger I, and thepivot 229 of each clamp-lever 221 at the outer end of its arm is on theopposite side of said axis from the pivot of the arm. The lever-carryingarms 23 I 23I thus cross each other, passing through vertical openingsextending laterally through the sleeve 20I and plunger I. Theclamp-levers at their upper ends are guided in vertical grooves 235, 235formed in blocks 231, 231 secured to the machine-frame. The sides of thegrooves prevent fore-and-aft springing of the levers, which, at theirupper ends, carry camrolls 239, 239 held against the bottoms of the 7grooves by a spring 2M uniting the levers. The 7 5 upper edge of each ofthe lever-carrying arms has formed in it a curved recess which iscomparatively close to the pivot 233 of the arm and is engaged by arounded end of an actuating lever 243 pivoted in the opening in theplunger I through which the lever-carrying arms pass. The upper edge ofthe actuating lever 243, the rounded ends of which are of comparativelyshort radius from the pivot of the lever, is curved about a horizontalaxis extending forwardly and rearwardly of the machine and passingthrough the vertical axis of the plunger I. The curved edge of theactuating lever seats in a correspondingly curved recess 245 formed inthe upper wall of the opening in the plunger through which thelever-carrying arms pass. A pin 241 in the plunger, which passes througha hole in the actuating lever larger than the pin, allows said lever torock but prevents it from falling if the lever-carrying arms areremoved. These arms are normally raised by a spring 249 connected topins extending downwardly from the arms at their pivots.

The plunger-sleeve 2! has rotatably mounted in it a horizontal pin 25I(Fig. 2) secured by a screw 253. The pin extends from the front of thesleeve toward the rear and at its outer end has a squared portion bywhich it may be rotated. The inner end of the pin has an eccentricportion 255 which enters a hole 251 in the plunger of greater diameterthan the eccentric portion. With the plunger I in its raised position,the portion 255 of the pin engages the lower wall of the hole, and thesleeve 29I and parts carried by it are thereby suspended. When a shoe onthe post has been swung downwardly and moved back to position the shoein the bandclamp II, the blocks 223 are preferably comparatively closeto the upper so that the operators fingers cannot accidentally be caughtbetween the shoe and blocks when the latter are actuated.

When the plunger I is depressed by the treadle I2, the plate I8I and theblocks 223 move down together with the shoe until the heel-seat engagesa heel supported upon the die-block I 86. Thereafter, during continueddownward movement of the plunger I, the plate I8I is arrested, and theactuating lever 243, depressed by the plungersurface 245, swings thelever-carrying arms 23I downwardly about their pivotal axes to move thelevers 221 and cause their blocks 223 to engage the shoe. At this time,the lower wall of the hole 251 in the plunger moves away from theeccentric-portion 255 of the pin 25I in the sleeve 20I. By adjustment ofthe eccentric 255, the initial spacing of the arms 23I from the lever243 and consequently the extent of clamping movement of the blocks 223may be varied. Owing to the arcuate movement of the fulcra of theclamp-levers 221 on the lever-carrying arms 23I, and the verticalmovement of the upper ends of the clamp-levers by reason of theirguidance by the frame-blocks 231, the clamping blocks 223 are movedtowards the shoe in a path approximately at right angles to the faces ofthe upper which they engage. scrape over and mar the upper-material. Thepivotal mounting of the actuating lever 243 in the plunger allows theblocks 223 to accommodate themselves to the position of the sides of theheel-end of the shoe laterally of the machine. When the plunger I ismoved down to apply pressure to the work, and the plate I8! and blocks223 are depressed by the actuating lever, the pressure of the blocksagainst the shoe is equalized by tipping of the actuating lever. Owingto the recesses in the lever-carrying arms 23I Consequently, they do notbeing comparatively close to the pivots of the arms as compared with thefulcra 229 of the levers 221 at the ends of the arms, the pressure ofthe plate l8! against the last is greater than the pressure of theblocks 223 against the upper.

If a low shoe rather than a high shoe is being operated upon, a last-pinin the plate I8! may be dispensed with, and the post need not, unlessdesired, be moved upon the plunger I to introduce a shoe into themachine or to remove it therefrom, since the last will project above theupper. Consequently, the shoe and lastcan be presented to the band-clampby passing the rear portions under the plate. In this case, theadditional raising of the band-clamp by the lever 249 will not occur,its elevation when the treadle is released allowing the introduction andremoval of the work.

Having described our invention, what we claim as new and desire tosecure by Letters Patent oi the United States is:

1. In a heel-attaching machine, relatively movable work-contactingmembers, relatively movable actuating members therefor comprising acylinder and a co-operating piston, one of the actuating members beingjoined to one of the work-contacting members to effect its movement, andmeans for moving one of the actuating members relatively to the otheractuating member to create pressure in the cylinder during theapplication of final pressure to the work.

2. In a heel-attaching machine, relatively movable work-contactingmembers, relatively movable actuating members therefor comprising acylinder and a co-operating piston, means arranged to move the cylinderto apply preliminary pressure to the work, and means for moving thepiston within the cylinder While producing further pressure-movement ofthe cylinder.

3. In a heel-attaching machine, relatively movable work-contactingmembers, relatively movable actuating members therefor comprising acylinder and a co-operating piston, one of the actuating members beingjoined to one of the work-contacting members to efieot its movement,means for moving the other actuating member to create pressure in thecylinder during the relative movement of said members, and meansarranged to control the degree of the thus-generated pressure.

4. In a heel-attaching machine, relativelymovable work-contactingmembers, relatively movable actuating members therefor comprising afluid-containing cylinder and a co-operating Diston, one of theactuating members being joined to one of the Work-contacting members toeffect its movement, means for moving the other actuating member tocreate pressure in the fluid in the cylinder during the relativemovement of said members and apply such pressure to the work, and meansfor preventing the escape of the fluid under pressure in the cylinder toretain the work under pressure.

5. In a heel-attaching machine, relatively movable work-contactingmembers, relatively movable actuating members therefor comprising acylinder and a co-operating piston, one of the actuating members beingmovable by the operator, and means made effective under the power of themachine for moving the other actuating member to create pressure in thecylinder during the relative movement of said members.

6. In a heel-attaching machine, relatively movable work-contactingmembers, relatively movable actuating members therefor comprising atuating member to create pressure in the fluid in the cylinder duringthe relative movement of said members and apply such pressure to thework, and means made effective under the power of the machine forpreventing escape of the fluid under pressure in the cylinder to retainthe Work under pressure.

'7. In a'heel-attaching machine, relatively movable work-contactingmembers, relatively movabie actuating members therefor comprising acylinder and a co-operating piston, one of the actuating members beingjoined to one of the Work-contacting members to effect its movement, anda valve member supported within the cylinder and through a passage inwhich the piston operates.

8; In a heel-attaching machine, relatively movable work-contactingmembers, relatively movable actuating members therefor comprising afluidcontaining cylinder and a co-operating piston,

one of the actuating members being joined to one 7 of thework-contacting members to'effect' its movement, a valve membersupported Within the cylinder, said valve member having an opening, anda valve movable under the influence of the fluid to control the flow ofsaid fluid through the opening.

9. In a heel-attaching machine, relatively movable work-contactingmembers, relatively movable actuating members therefor comprising afluid-containing cylinder anda oo-operating piston, one of the actuatingmembers being joined to one of the work-contacting members to effect itsmovement, a valve member supported within the cylinder, said valvemember having an opening, a valve movable under the influence of thefluid to control the flow of said fluid through the opening, and meansarrangedto vary the resistance of the valve to movement.

10. In a heel-attaching machine, relatively movable work-contactingmembers, relatively movable actuating members therefor comprising acylinder and a co-operating piston, one of the actuating members beingjoined to one of the work-contacting members to effect its movement, anda valve member supported within the cylinder and through which thepiston operates, said valve member having an opening controlled by thepiston.

11. In a heel-attaching machine, relatively movable work-contactingmembers, relatively movable actuating members therefor comprising afluid-containing cylinder and a co-operating piston, one of theactuating members being joined to one of the work-contacting members toeffect its movement, a valve member supported within the cylinder, saidvalve member being provided with an opening, and a valve movable underthe power of the machine to control the passage of fluid through theopening.

12. In a heel-attaching machine, relatively movable work-contactingmembers, relatively movable actuating members therefor comprising afluid-containing cylinder and a co-operating piston, fine of theactuating members being joined to one of the work-contacting members toeffect its movement, a valve member supported within the cylinder, saidvalve member being provided with a plurality of openings, a valvemovable under the influence of the fluid to control the passage of saidfluid through one of the openings,

and a valve movable under the power of the machine to control thepassage of the fluid through another opening.

13. In a heel-attaching machine, relatively movable Work-contactingmembers, relatively movable actuating members therefor comprising acylinder and a co-operating piston, one of the actuating members beingjoined to one of the work-contacting members to effect its movement,

10 a valve member supported within the cylinder, said valve member beingprovided with openings, a plurality of valves to control certain of theopenings, and another opening controlled by the piston.

14. In a heel-attaching machine, a frame, a

cylinder movable therein and carrying a Workpressing member, a tubefixed to the frame and fitting within the cylinder, a piston movablethrough the tube, and means for reciprocating the piston.

15. In a heel-attaching machine, a frame, a cylinder movable by theoperator therein and carrying a work-pressing member, a tube fixed tothe frame and fitting within the cylinder, a

5 piston movable through the tube, and means for reciprocating thepiston under the power of the machine.-

16. In a heel-attaching machine, a frame, a cylinder movable therein andcarrying a Workpressing member, a tube fitting within the cylinder,there being openings in the wall of the tube to connect upper and lowerportions of the cylinder, 2. piston movable through the tube, and meansfor reciprocating the piston.

17. In a heel-attaching machine, a frame, a

cylinder movable therein and carrying a workpressing member, a tubefitting within the cylinder, a piston movable through the tube, meansfor reciprocating the piston, and a valve member mounted at the innerextremity of the tube.

18. In a heel-attaching machine, a frame, a cylinder movable therein andcarrying a workpressing member, a tube fitting within the cylinder, apiston movable through the tube, means for reciprocating the piston, anda valve member mounted at the inner extremity of the tube and havingopenings controlled by the piston in its movement.

19. In a heel-attaching machine, a frame, a cylinder movable therein andcarrying a workpressing member, a tube fixed to the frame and fittingwithin the cylinder, a. piston movable through the tube, means forreciprocating the piston, a valve member mounted at the inner extremityof the tube and having a passage opening through its opposite ends, anda valve for controlling the passage.

20. In a heel-attaching machine, a frame, a cylinder movable therein andcarrying a workpressing member, a tube fixed to the frame and fittingwithin the cylinder, a piston movable through the tube, means forreciprocating the piston, a valve member mounted at the inner extremityof the tube and having a passage opening through its opposite ends, avalve for controlling the passage, and means for moving the valve underthe power of the machine.

21. In a heel-attaching machine, a frame, a cylinder movable therein andcarrying a workpressing member, a tube fixed to the frame and fittingwithin the cylinder, a piston movable through the tube, means forreciprocating the piston, a valve member mounted at the inner extremityof the tube and having a passage opening through its opposite end, avalve for controlling the passage, a spring within the tube acting tonormally close the valve, and means movable upon the tube for varyingthe force of the spring.

22. In a heel-attaching machine, a frame, a cylinder movable therein andcarrying a workpressing member, a tube fixed to the frame and fittingwithin the cylinder, a tubular piston movable through the tube, meansfor reciprocating the piston, a valve member mounted at the innerextremity of the tube, a valve-rod movable through the piston, and avalve carried by the rod and co-operating with the valve member.

JOSEPH GOULDBOURN. THOMAS AUBREY KESTELL.

